PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B86A0043-1Transformer,power

Mcdonnell Douglas Corp Mcdonnell Douglas Electronic Systems Co · NSN 5950-00-903-0443 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-903-0443 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-903-0443. Primary manufacturer part number: B86A0043-1.
Features
  • Transformer,power — FSC 5950
  • Reliability Indicator: NOT ESTABLISHED
  • Winding Operating Current: 236.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
  • Body Width: 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN
  • Frequency Rating: 400.0 HERTZ MAXIMUM SINGLE COMPONENT
  • Body Length: 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN
  • Body Height: 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN
  • Terminal Type and Quantity: 5 PIN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-903-0443, is classified within Federal Supply Class 5950 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Mcdonnell Douglas Corp Mcdonnell Douglas Electronic Systems Co. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-903-0443
Primary Part NumberB86A0043-1
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerMcdonnell Douglas Corp Mcdonnell Douglas Electronic Systems Co
StatusACTIVE
Reliability IndicatorNOT ESTABLISHED
Winding Operating Current236.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
Body Width0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN
Frequency Rating400.0 HERTZ MAXIMUM SINGLE COMPONENT
Body Length0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN
Body Height0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN
Terminal Type and Quantity5 PIN
Maximum Operating Temp130.0 CELSIUS DEGC
Winding Operating Voltage11.80 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Inclosure TypeFULLY INCLOSED
Mounting MethodPLUG-IN SINGLE GROUP
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Winding Operating Voltage11.80 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5306-00-207-963522649 INTERCHANGEABLE
Bolt,machine
Vse Aviation, Inc.
4730-00-724-084718193 INTERCHANGEABLE
Plug,manifold
Cadillac Gage Textron Inc.
4820-01-129-45471819-3 INTERCHANGEABLE
Cock,drain
Rockwell Collins Inc
6515-01-595-920218193 INTERCHANGEABLE
Bag,ostomy
Hollister Inc
5180-01-708-002518-193 INTERCHANGEABLE
Tool Kit,electrical Contact
Applied Avionics, Llc Dba Applied Avionics, Inc
5180-01-708-7968 INTERCHANGEABLE
Tool Kit,electrical Contact
Cross-Reference Index
Part NumberManufacturer
B86A0043-1 Mcdonnell Douglas Corp Mcdonnell Douglas Electronic Systems Co (USA)
18193 Torotel, Inc. Div Torotel Products, Inc. (USA)
Related Parts
5306-00-207-9635INTERCHANGEABLE
BOLT,MACHINE
22649
4730-00-724-0847INTERCHANGEABLE
PLUG,MANIFOLD
18193
4820-01-129-4547INTERCHANGEABLE
COCK,DRAIN
1819-3
6515-01-595-9202INTERCHANGEABLE
BAG,OSTOMY
18193
5180-01-708-0025INTERCHANGEABLE
TOOL KIT,ELECTRICAL CONTACT
18-193
5180-01-708-7968INTERCHANGEABLE
TOOL KIT,ELECTRICAL CONTACT

Frequently Asked Questions

What is NSN 5950-00-903-0443?

NSN 5950-00-903-0443 is a Transformer,power, manufactured by Mcdonnell Douglas Corp Mcdonnell Douglas Electronic Systems Co, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-903-0443?

NSN 5950-00-903-0443 has 2 cross-referenced part numbers: B86A0043-1 (Mcdonnell Douglas Corp Mcdonnell Douglas Electronic Systems Co), 18193 (Torotel, Inc. Div Torotel Products, Inc.).

What NSN replaces 5950-00-903-0443?

There are 6 known substitutes for 5950-00-903-0443: 5306-00-207-9635, 4730-00-724-0847, 4820-01-129-4547 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B86A0043-1?

Key specifications for B86A0043-1: Reliability Indicator: NOT ESTABLISHED; Winding Operating Current: 236.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY; Body Width: 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN; Frequency Rating: 400.0 HERTZ MAXIMUM SINGLE COMPONENT. 14 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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